* {
    padding: 0;
    margin: 0;
}
.footer {
    width: 100%;
    height: 50px;
    background-color: #fff;
    // margin-top: 50px;
    border-top: 1px solid rgba(128, 128, 128, 0.385);
    position: fixed;
    bottom: 0;
    display: flex;
    // justify-content: center;
    justify-content: space-around;
    align-items: center;
    .mode {
        width: 19%;
        height: 50px;
        // background-color: rgba(255, 0, 0, 0.368);
        .cneter {
            width: 100%;
            height: 100%;
        
        }
        .top {
            width: 100%;
            height: 50%;
            display: flex;
            justify-content: center;
            // align-items: center;
            i {
                margin-top: 6px;
                font-size: 17px;
            }
        }
        .bottom {
            width: 100%;
            height: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 13px;
        }
    }
}
.active {
    color: red;
}
.loading {
    display: flex;
    flex-flow: row nowrap;
    align-items: center;
    justify-content: space-between;
    margin: 340px auto;
    width: 3em;
    span {
        width: 0.3em;
        height: 1em;
        background-color: #3cefff;
      }
      
      span:nth-of-type(1) {
        animation: grow 1s -0.45s ease-in-out infinite;
      }
      
      span:nth-of-type(2) {
        animation: grow 1s -0.3s ease-in-out infinite;
      }
      
      span:nth-of-type(3) {
        animation: grow 1s -0.15s ease-in-out infinite;
      }
      
      span:nth-of-type(4) {
        animation: grow 1s ease-in-out infinite;
      }
      
      @keyframes grow {
        0%,
        100% {
          transform: scaleY(1);
        }
      
        50% {
          transform: scaleY(2);
        }
      }
}